usr/src/include/stdio.h

/*      stdio.h 1.9     84/11/21        */
#define BUFSIZ  1024
#define _NFILE  20
# ifndef FILE
extern  struct  _iobuf {
        int     _cnt;
        char    *_ptr;
        char    *_base;
        int     _bufsiz;
        short   _flag;
        char    _file;
} _iob[_NFILE];
# endif

#define _IOREAD 01
#define _IOWRT  02
#define _IONBF  04
#define _IOMYBUF        010
#define _IOEOF  020
#define _IOERR  040
#define _IOSTRG 0100
#define _IOLBF  0200
#define _IORW   0400
#define NULL    0
#define FILE    struct _iobuf
#define EOF     (-1)

#define stdin   (&_iob[0])
#define stdout  (&_iob[1])
#define stderr  (&_iob[2])
#define getc(p)         (--(p)->_cnt>=0? (int)(*(unsigned char *)(p)->_ptr++):_filbuf(p))
#define getchar()       getc(stdin)
#define putc(x, p)      (--(p)->_cnt >= 0 || ((p)->_flag & _IOLBF) &&\
                -(p)->_cnt <= (p)->_bufsiz && (x) != '\n' ?\
                (int)(*(unsigned char *)(p)->_ptr++ = (x)) :\
                _flsbuf((unsigned char)(x), p))
#define putchar(x)      putc(x,stdout)
#define feof(p)         (((p)->_flag&_IOEOF)!=0)
#define ferror(p)       (((p)->_flag&_IOERR)!=0)
#define fileno(p)       ((p)->_file)

FILE    *fopen();
FILE    *fdopen();
FILE    *freopen();
long    ftell();
char    *fgets();
char    *gets();
#ifdef vax
char    *sprintf();             /* too painful to do right */
#endif